Philly has a ton of opportunity, but since you are new to the area, I would suggest waiting six months before you buy anything there so you can really understand the block construction of the area.

We can block all we want, the same entity will be using a new and unblocked number.  

In my basements tenants have access to they totally disregard the access required and block the pathways needed for access.

Buffalo changes very quickly block to block (not just ZIP by ZIP) and it is crucial that you understand this prior to writing any checks. 

Our logical process:1) Use Neighborhood rankings to narrow down area of city you want to invest in2) Focus on getting to know that Neighborhood(s), so you know the good & bad streets, block-by-block.3) Be patient to acquire properties on good streets that meet your buying criteria.Our rankings are done with a "bell curve" approach.

Lots and lots of research.Price points also help, block quality, etc.

Detroit is very much a block-by-block city, so having local knowledge is absolutely critical.

Detroit is a great city to invest in one just has to be aware that is is a block by block city and to be careful

For Airbnb, do i allow STR stays for the next three months and then block out the calendar beyond 3 months for MTR stays?  

That said, Detroit is very much a block-by-block market, so understanding the dynamics of specific areas is critical.For professional investors (and even newer ones), Detroit’s future is bright if you approach it with the right strategy, solid due diligence, and an understanding of the challenges.